Discussion Forum : True Discount
Question - Jasmine allows 4% discount on the marked price of her goods and still earns a profit of 20%. What is the cost price of a shirt if its marked price is Rs.850?
Options:
A .  Rs.720
B .  Rs.680
C .  Rs.700
D .  Rs.650
Answer: Option B
Answer: (b)Cost price of the shirt = Rs.x$x × 120/100 = {850 × 96}/100$x × 120 = 850 × 96$x = {850 × 96}/120$ = Rs.680Using Rule 6,If r% of profit or loss occur after giving D% discount on marked price, then$\text"MP"/\text"CP" = {100 ± r}/{100 - D}$(positive sign for profit and negative for loss)

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